From: Artur Skawina <art.08.09@gmail.com>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Nicolas Pitre <nico@cam.org>, George Spelvin <linux@horizon.com>,
Junio C Hamano <gitster@pobox.com>,
git@vger.kernel.org
Subject: Re: x86 SHA1: Faster than OpenSSL
Date: Thu, 06 Aug 2009 09:45:01 +0200 [thread overview]
Message-ID: <4A7A89FD.4040800@gmail.com> (raw)
In-Reply-To: <4A7A7074.1060506@gmail.com>
Artur Skawina wrote:
>
> and my atom seems to like the compact loops too:
no, that was wrong, i forgot to turn off the ondemand governor...
the unrolled loops are in fact much faster and the numbers
look more reasonable, after a few tweaks even on a P4.
Now i just need to check how well it does compared to the
asm implementations...
artur
# TIME[s] SPEED[MB/s]
# ATOM
rfc3174 2.199 27.75
linus 0.8642 70.62
linusas 1.606 38.01
linusas2 0.8763 69.65
mozilla 2.813 21.7
mozillaas 2.539 24.04
# P4
rfc3174 1.402 43.53
linus 0.5835 104.6
linusas 0.4625 132
linusas2 0.4456 137
mozilla 1.529 39.91
mozillaas 1.131 53.96
# P3
rfc3174 5.019 12.16
linus 1.86 32.81
linusas 3.108 19.64
linusas2 1.812 33.68
mozilla 6.431 9.49
mozillaas 5.868 10.4
next prev parent reply other threads:[~2009-08-06 7:45 UTC|newest]
Thread overview: 60+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-07-26 23:21 Performance issue of 'git branch' George Spelvin
2009-07-31 10:46 ` Request for benchmarking: x86 SHA1 code George Spelvin
2009-07-31 11:11 ` Erik Faye-Lund
2009-07-31 11:31 ` George Spelvin
2009-07-31 11:37 ` Michael J Gruber
2009-07-31 12:24 ` Erik Faye-Lund
2009-07-31 12:29 ` Johannes Schindelin
2009-07-31 12:32 ` George Spelvin
2009-07-31 12:45 ` Erik Faye-Lund
2009-07-31 13:02 ` George Spelvin
2009-07-31 11:21 ` Michael J Gruber
2009-07-31 11:26 ` Michael J Gruber
2009-07-31 12:31 ` Carlos R. Mafra
2009-07-31 13:27 ` Brian Ristuccia
2009-07-31 14:05 ` George Spelvin
2009-07-31 13:27 ` Jakub Narebski
2009-07-31 15:05 ` Peter Harris
2009-07-31 15:22 ` Peter Harris
2009-08-03 3:47 ` x86 SHA1: Faster than OpenSSL George Spelvin
2009-08-03 7:36 ` Jonathan del Strother
2009-08-04 1:40 ` Mark Lodato
2009-08-04 2:30 ` Linus Torvalds
2009-08-04 2:51 ` Linus Torvalds
2009-08-04 3:07 ` Jon Smirl
2009-08-04 5:01 ` George Spelvin
2009-08-04 12:56 ` Jon Smirl
2009-08-04 14:29 ` Dmitry Potapov
2009-08-18 21:50 ` Andy Polyakov
2009-08-04 4:48 ` George Spelvin
2009-08-04 6:30 ` Linus Torvalds
2009-08-04 8:01 ` George Spelvin
2009-08-04 20:41 ` Junio C Hamano
2009-08-05 18:17 ` George Spelvin
2009-08-05 20:36 ` Johannes Schindelin
2009-08-05 20:44 ` Junio C Hamano
2009-08-05 20:55 ` Linus Torvalds
2009-08-05 23:13 ` Linus Torvalds
2009-08-06 1:18 ` Linus Torvalds
2009-08-06 1:52 ` Nicolas Pitre
2009-08-06 2:04 ` Junio C Hamano
2009-08-06 2:10 ` Linus Torvalds
2009-08-06 2:20 ` Nicolas Pitre
2009-08-06 2:08 ` Linus Torvalds
2009-08-06 3:19 ` Artur Skawina
2009-08-06 3:31 ` Linus Torvalds
2009-08-06 3:48 ` Linus Torvalds
2009-08-06 4:01 ` Linus Torvalds
2009-08-06 4:28 ` Artur Skawina
2009-08-06 4:50 ` Linus Torvalds
2009-08-06 5:19 ` Artur Skawina
2009-08-06 7:03 ` George Spelvin
2009-08-06 4:52 ` George Spelvin
2009-08-06 4:08 ` Artur Skawina
2009-08-06 4:27 ` Linus Torvalds
2009-08-06 5:44 ` Artur Skawina
2009-08-06 5:56 ` Artur Skawina
2009-08-06 7:45 ` Artur Skawina [this message]
2009-08-06 18:49 ` Erik Faye-Lund
2009-08-04 6:40 ` Linus Torvalds
2009-08-18 21:26 ` Andy Polyakov
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